铁道科学与工程学报2018，Vol.15Issue(5)：1118-1127,10.
CRH3型动车组辅助供电系统可靠性分析
A reliability evaluation for auxiliary power system of CRH3 EMU
摘要
Abstract
According to the structure and operational characteristics of CRH3 EMU auxiliary power system, the reliability network diagram model for the system was built on the basis of the graph theory. Therefore, the calculation for availability is transformed into calculating the connected probability of network diagram from the beginning to the end. Then the MCS-CA algorithm and its improved algorithm with fusion of LS-SVM are applied to the reliability analysis successively, in which the maintainability and shutdown correlation of components for the system are taken into account. In consideration of historical running data on a CRH3 EMU, the calculated results are obtained in different working modes, and the related curves as well as formulas of reliability and availability varying with time were presented here. The research shows that the calculated results with the improved method embodies the high computational efficiency and stable accuracy. Besides, the parallel relationship between components and the redundant design of system both can improve the reliability of a system.关键词
CRH3型动车组/辅助供电系统/MCS-CA算法/LS-SVM分类器/可靠性评估Key words
CRH3 EMU/auxiliary power system/MCS-CA algorithm/LS-SVM classsifer/reliability evaluation分类
资源环境引用本文复制引用
赵峰,曹茜,王开铭..CRH3型动车组辅助供电系统可靠性分析[J].铁道科学与工程学报,2018,15(5):1118-1127,10.基金项目
光电技术与智能控制教育部重点实验室开放课题资助项目(KFKT2016-6) （KFKT2016-6）
